At its insertion (unlike at its origin), the buccinator muscle __________.
A. attaches at two distinct sites on the bone
B. converges on a single process of the mandible
C. attaches to a prominent point on the mandible
D. attaches to fibers of another facial muscle
Answer: D. attaches to fibers of another facial muscle
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The developing kidneys are able to produce and expel urine by week ________ of development.
A. 25 B. 5 C. 15 D. 20 E. 10
What do atrial septal defects and ventricular septal defects have in common?
A) They cause all congenital heart diseases. B) Both involve abnormal wall openings that separate the heart's right and left sides. C) Blood flows from right atrium to left atrium. D) Blood flows from right ventricle to left ventricle.
Which are characteristics of cholesterol?
A. It is hydrophobic. B. It is a type of protein. C. It is an energy-storage molecule. D. It is an important component of cell membranes.
Muscular fatigue can be caused by
a. lactic acid accumulation b. depletion of ATP c. depletion of ACh d. only two of the above e. a, b, or c